A green and efficient photo-driven route for the selective oxidation of aqueous isopropanol solution to pinacol (C6) with hydrogen peroxide

被引：5

作者：

Li, Na ^{[1
]}

Yan, Wenjun ^{[1
]}

Zhang, Hongxia ^{[1
,2
]}

Jia, Suping ^{[1
]}

Wang, Zhijian ^{[1
]}

Zheng, Jianfeng ^{[1
]}

Zhu, Zhenping ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[2] Shanxi Univ, Inst Applicat Chem, Taiyuan 030001, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2017年 / 41卷 / 07期

基金：

中国国家自然科学基金;

关键词：

CARBON BOND FORMATION; VISIBLE-LIGHT; ALIPHATIC-ALCOHOLS; ARYL ALDEHYDES; KETONES; WATER; PHOTOCATALYSTS; TRANSFORMATION; IRRADIATION; SYSTEM;

D O I：

10.1039/c6nj03848d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Selective oxidation of alcohols to highly valued chemicals in a clean manner (e.g., with water as a solvent and O-2 or H2O2 as the primary oxidant) is the subject of considerable research attention. This paper presents a simple and environmentally friendly approach for the selective oxidation of isopropanol to pinacol C-6 (2,3-dimethyl-2,3-butanediol) in water with hydrogen peroxide (H2O2) through UV irradiation under mild conditions. A selectivity of 82-95% is achieved at H2O2 feeding rates below 4 mL h(-1). The introduction of TiO2 nanotubes can further accelerate isopropanol conversion and enhance pinacol C-6 formation. The highest formation rate of pinacol C-6 and the highest conversion rate of isopropanol are 29.4 and 71.4 mmol h(-1), respectively. The proposed strategy provides a green solution for the synthesis of aliphatic pinacol and offers a new design for the construction of C-C bonds with alphatic alcohol.

引用

页码：2764 / 2768

页数：5

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